47 lines
1.8 KiB
Go
47 lines
1.8 KiB
Go
// This file was vendored in unmodified from
|
|
// https://github.com/open-telemetry/opentelemetry-go/blob/c21b6b6bb31a2f74edd06e262f1690f3f6ea3d5c/internal/baggage/baggage.go
|
|
//
|
|
// Copyright The OpenTelemetry Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
/*
|
|
Package baggage provides base types and functionality to store and retrieve
|
|
baggage in Go context. This package exists because the OpenTracing bridge to
|
|
OpenTelemetry needs to synchronize state whenever baggage for a context is
|
|
modified and that context contains an OpenTracing span. If it were not for
|
|
this need this package would not need to exist and the
|
|
`go.opentelemetry.io/otel/baggage` package would be the singular place where
|
|
W3C baggage is handled.
|
|
*/
|
|
package baggage
|
|
|
|
// List is the collection of baggage members. The W3C allows for duplicates,
|
|
// but OpenTelemetry does not, therefore, this is represented as a map.
|
|
type List map[string]Item
|
|
|
|
// Item is the value and metadata properties part of a list-member.
|
|
type Item struct {
|
|
Value string
|
|
Properties []Property
|
|
}
|
|
|
|
// Property is a metadata entry for a list-member.
|
|
type Property struct {
|
|
Key, Value string
|
|
|
|
// HasValue indicates if a zero-value value means the property does not
|
|
// have a value or if it was the zero-value.
|
|
HasValue bool
|
|
}
|